Complications of Total Hip Arthroplasty in Patients With Ankylosing Spondylitis.

ABSTRACT: OBJECTIVE:To compare the risks of complications of primary total hip arthroplasty (THA) between patients with ankylosing spondylitis (AS) and those without AS. METHODS:In this population-based study, we examined data from 1999 to 2013 of US Medicare beneficiaries (ages <75 years old) with AS and a comparison group without AS who had undergone primary THA. Complications were based on the Centers for Medicare & Medicaid Services 2013 THA Complication Measure, which included myocardial infarction, pneumonia, or sepsis within 7 days; surgical site bleeding, pulmonary embolus, or venous thrombosis within 30 days; or mechanical complications or local infection within 90 days. Mortality within 90 days, revision arthroplasty within 1 year, long length of stay, discharge to a care facility, and readmission within 90 days were also examined. RESULTS:The study included 2,773 patients with AS and 107,341 patients without AS who had THA. Perioperative complications, 30-day complications, and local infections were rare in both groups (<1%). Mechanical complications and revision arthroplasty were uncommon in both groups. Ninety-day mortality was lower among patients with AS than those without AS (0.36% versus 0.7%). Patients with AS were more likely to be discharged to a care facility, and slightly more likely to have a long length of stay. Likelihood of a long stay was lower at hospitals that performed ?100 THAs per year, but other complications were not associated with hospital volume. CONCLUSION:Complications after primary THA are uncommon in patients with AS and similar in frequency to those without AS. Ninety-day mortality was lower among patients with AS.

SUBMITTER: Ward MM 

PROVIDER: S-EPMC6193863 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature